After detailing our cars we would always be super cautious about ever hitting the windscreen washer stalk, for fear of the washer fluid potentially etching or affecting our freshly detailed car. So, we have been working for years on a formula that was safe, but also works well enough at cleaning normal road grime, bugs, seaspray and dust from the glass. After testing for the last year on all our road trips and daily driving we have now developed one that fits the bill just right. Does not damage or create stress cracks in polycarbonate headlights.Lubricates wipers so they work better and reduce wiper chatter.Anti-corrosives to stop rust forming on wiper arms and around windscreens.Won't leave water spot / etch marks, especially when used with distilled or filtered rain water.Smells great, so you (or the car behind if you have poorly adjusted wiper jets) can faintly smell it through the car after each use.All Australian developed and made!